﻿<%@ webhandler Language="C#" class="Upload" %>



using System;
using System.Collections;
using System.Web;
using System.IO;
using System.Globalization;

using LitJson;
using Qiniu.Conf;
using Qiniu.IO.Resumable;
using Qiniu.RPC;
using Qiniu.RS;
using Qiniu.RSF;
public class Upload : IHttpHandler
{
	private HttpContext context;

	public void ProcessRequest(HttpContext context)
	{
		String aspxUrl = context.Request.Path.Substring(0, context.Request.Path.LastIndexOf("/") + 1);
       
		
		//文件保存目录路径
		String savePath = "attached/";

		//文件保存目录URL
		String saveUrl = aspxUrl + "attached/";
	    
		//定义允许上传的文件扩展名
		Hashtable extTable = new Hashtable();
		extTable.Add("image", "gif,jpg,jpeg,png,bmp");
		extTable.Add("flash", "swf,flv");
		extTable.Add("media", "swf,flv,mp3,wav,wma,wmv,mid,avi,mpg,asf,rm,rmvb");
		extTable.Add("file", "doc,docx,xls,xlsx,ppt,htm,html,txt,zip,rar,gz,bz2,pdf");

        Config.ACCESS_KEY = "9hSrJSwMyZua538MfMlzUtjnamR_3xgOQqGgj0EI";
        Config.SECRET_KEY = "a84YTNjKVE8w4shX6HjnXFVV4iN1ShE1fbgMAq7g";
        var policy = new PutPolicy("zhongheweb", 3600);
        var upToken = policy.Token();
        var setting = new Settings();
        var extra = new ResumablePutExtra();
        var client = new ResumablePut(setting, extra);
        
		//最大文件大小
		//int maxSize = 10000000;
		this.context = context;

		HttpPostedFile imgFile = context.Request.Files["imgFile"];
		if (imgFile == null)
		{
			showError("请选择文件。");
		}

        //String dirPath = context.Server.MapPath(savePath);
        //if (!Directory.Exists(dirPath))
        //{
        //    showError("上传目录不存在。");
        //}

        String dirName = context.Request.QueryString["dir"];
        if (String.IsNullOrEmpty(dirName))
        {
            dirName = "image";
        }
        if (!extTable.ContainsKey(dirName))
        {
            showError("目录名不正确。");
        }

		String fileName = imgFile.FileName;
		//String fileExt = Path.GetExtension(fileName).ToLower();

        //if (imgFile.InputStream == null || imgFile.InputStream.Length > maxSize)
        //{
        //    showError("上传文件大小超过限制。");
        //}

        //if (String.IsNullOrEmpty(fileExt) || Array.IndexOf(((String)extTable[dirName]).Split(','), fileExt.Substring(1).ToLower()) == -1)
        //{
        //    showError("上传文件扩展名是不允许的扩展名。\n只允许" + ((String)extTable[dirName]) + "格式。");
        //}

		//创建文件夹
        //dirPath += dirName + "/";
        //saveUrl += dirName + "/";
        //if (!Directory.Exists(dirPath)) {
        //    Directory.CreateDirectory(dirPath);
        //}
        //String ymd = DateTime.Now.ToString("yyyyMMdd", DateTimeFormatInfo.InvariantInfo);
        //dirPath += ymd + "/";
        //saveUrl += ymd + "/";
        //if (!Directory.Exists(dirPath)) {
        //    Directory.CreateDirectory(dirPath);
        //}

        //String newFileName = DateTime.Now.ToString("yyyyMMddHHmmss_ffff", DateTimeFormatInfo.InvariantInfo) + fileExt;
        //String filePath = dirPath + newFileName;

        var fileExtension = Path.GetExtension(fileName).ToLower(); // 文件扩展名
        var saveName = Guid.NewGuid() + fileExtension;
        var ret = client.PutFile(upToken, imgFile.InputStream, saveName);
		//imgFile.SaveAs(filePath);

        String fileUrl = "http://zhongheweb.qiniudn.com/" + saveName;

		var hash = new Hashtable();
		hash["error"] = 0;
		hash["url"] = fileUrl;
		context.Response.AddHeader("Content-Type", "text/html; charset=UTF-8");
		context.Response.Write(JsonMapper.ToJson(hash));
		context.Response.End();
	}

	private void showError(string message)
	{
		Hashtable hash = new Hashtable();
		hash["error"] = 1;
		hash["message"] = message;
		context.Response.AddHeader("Content-Type", "text/html; charset=UTF-8");
		context.Response.Write(JsonMapper.ToJson(hash));
		context.Response.End();
	}

	public bool IsReusable
	{
		get
		{
			return true;
		}
	}
}
